Pulse frequency modulation regulation and exit scheme using single comparator for power converter
US12381469B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2023 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Aug 16, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method may include, when in a low-power mode of a power converter, monitoring an output voltage of the power converter; comparing, with a single comparator, the output voltage to a first threshold voltage and cause the power converter to enter a magnetization phase of the low-power mode responsive to the output voltage falling below the first threshold voltage; and during the magnetization phase and a demagnetization phase of the low-power mode, comparing, with the single comparator, the output voltage to a second threshold voltage lower than the first threshold voltage and cause the power converter to enter the high-power mode responsive to the output voltage falling below the second threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.